Three-Dimensional Biofilm Electrode Reactors with Polyurethane Sponge Carrier for Highly Efficient Treatment of Pharmaceuticals Wastewater Containing Tetrahydrofuran

Three-dimensional biofilm electrode reactors (3D-BERs) exhibit efficacy in the removal of refractory wastewater pharmaceuticals due to resistance pharmaceutical biodegradation. In this paper, a new 3D-BER with polyurethane sponge carrier was applied treatment containing tetrahydrofuran (THF) an objective exploring efficiency, degradation pathway and main functions microorganisms 3D-BERs for THF. The results indicate that when voltage is 10 V, highest CODCr efficiency (95.9 ± 1.6)%. Compared control group, rate increased by 21.97 4.69%. intermediates THF, γ-butyrolactone 4-hydroxybutyric acid, were detected, respectively, Gas Chromatography–Mass Spectrometry (GC–MS), indicating contribute THF electro-oxidation as well microbial synergism. Microorganisms, such Proteobacteria extracellular electron transfer capacity, Bacteroidetes capable degrading complex carbon sources parthenogenic anaerobic bacteria Firmicutes, found be enriched high-throughput sequencing analysis 3D-BERs, which conducive pollutants. At genus level, Chryseobacterium, Brevundimonas, Erysipelothrix, Desulfovibrio functional genera, whose prediction, mainly through chemoheterotrophy, aerobic etc. It hoped study will provide solution practical via system carrier.